Electric locomotive.



NoL 849,432.

E. A. SPERRY.

PATENTED APR. 9, 1907.

ELECTRIC LGOMOTIVE. APPLI'CATION FILED Nov.2s,19oz.

2 SHEETS-SHEET l.

PATBNTED APR. 9, 1907.

2 SHEETS-SHEET 2.

'ELMER A. SPERRY, Ul? Milli lalLAND, DHH), .f'iSblilXOl T() GOOV'DMB N FACTURNG (OB'HHNY, Ul fllllji), llrlilNUlh, A (lOi'Plll ILLINOIS.

i (Si iiiiiil )airis iliioiighoiii llii ilixixi; ,l have n'hoivii vni'ioiir: zii' 3o iloiziil mi iiiirlsol ihr rial iiii" iii oi" iiioiiiiii f :iiid iiieihoil of iiioiiiiiiiih i engaging' ilia rack, so .ie in irlii'f; support' to the siipcrr iii iii 354 by the` loroiiioliwe iiizii' liv i its iziclisiii comioiriiozi iii if: of ihr.: i'izirliii.

ille riiiffli-iz'iil iiisllill, :ii-ril lio lui uil ivoi'liiiigis only iviiiporiiry l ,ii'oiilil iioiy vm iiiiiiis, ill-:5.: liiily irlzi ii l,

iwi-o- :ihlig mi; oifoiiiiziifc io l'iiilil iliis i iiilililioiizil servico my oi'mtiiiiz i die proiialliii liesioii upon the rn. a, :mii il; l' iin iiiifiiiio axle iiiiil zii, thi? miie liiiiio liriiigvgiiig iiiio iililj;

fo iiiiiiiiigg Contact 'with ilio il. i i'iicii supn mi. oveili/cziil trolley Sylieiii iii lioii oi llii: ply, means 0l iiisiilfitioii ziiiil i'ifblieiii- :Lotion liiiil ruoli-mil. Again, I lilivo loiiiiil li-ik 4o of the propelling gears, iiiiiiiis i'or coiiliiliiig ovei'lioiiil lrolley vziliiiihli: :ilpzii'liiigs iiiii. the two propelling-gears iigail'ior, wiili other i iiiiilc ways, iii the region of which i'iio ciiri'ifri features clearly dosi* "ibiil liiri'liinillci n iiil i iiiziy ho iliscoiiiiieotcd from thu iaicli--riiil i deliiiiiielv pointed oui iii liii-y ifliiiiiis. i iiily, iiiiil therefor@ loll; irai) ol ils iiisiilni' mi lli@ lowiiioliifii Qiiiproie lioii miel ioiiilcriiil I*iiiipler iii iiisinllr..-

The general design oi y 45 bodyiiig the eimiieiils ol' the piosifiii iiwiiiilioii, ziiil imp@ i im'. iiiiiii :aio plaire `iii iin.: .'oiill-liiiil, mi; oliofe smiirilieii. .l limi? l i tioii iii'volveri llii^` olio ol' i iioifrr soiiil: iiioiintied upon ii truck i ordinary riiilwiiji' micia in lo which. there. exists :i 5o engaged by il'ircferiilily liiiggears iiiioii ipliif: locoiiiiiiifw, so driven iii .,oiiiiiiiiiell to a source :is to if@ coup'iiifl fir Li'iuoliio where it is used as a part of the electric circuit, I find it best to employ an exterior rubbing contact,preferably located upon a cylindrical portion of the hub. (See Fig. 2.) In insulating this driving-gear I have found it convenient to employ resilient insulating material, thereby securing the additional advantage of a yielding drive, which with the coarse-pitch teeth employed 'is desirable.

Certain switches are employed to control the circuit connections between the motor and the duplicate sources of electrical supply or running contact. l

In the drawings a multipolar motor C is shown with its armature suitably mounted in motor-bearings, the armature being removable upwardly after the upper half of the field-yoke is removed at joints on the horizonm tal line, as shown. The armature is shown as having two commutatore C and C2 for the purpose of better facilitating speed and power control by any of the well-known means. rl`he opposite ends of the armatureshafts are coupled each to a inopelling-gear D and E through intermediate gearing consisting of a bevel-pinion CG on the armatureshaft cooperating with bevel-gears C3 C on the gearshaft which carri es a pinion C", driving a gear C7 upon the shaft C8. Said shaft jCS is not fast, but maybe movable, and is supported by the toggle-links C, (shown in Figs. l and 2,) which couple it, respectively, to the gear-shaft C and gear U3 on the sleeve-axis D4, compelling proper gear relation. to eac-h,

but allowing lrelative movement betvveen them, whereby the truck-frame may be yiehin'lyi supported, the propelling-gear maintiiii it` relation with the rack, and the power'connection properly maintz'iined.

On the intermediate gear at each end ,or attached surface is applied a brake. (See Figs. 2 and S.)

Upon shaft Cb is a disk l?, about which is a Vbrake-straw F having one end 'neferablv J i l fastened to a fixed part, the other end being adjustably connected to the controlling part F2. The same controllingpart l"- is used in both sets of brakes. lt will here be seen that the bral -applying mechanism offers the additional valuable function of an equalizer between vthe sets` of brakes. The car-wheels 'themselves are also provided with brakes equalized by the floatingr fulcrum of the bellcranli brake-applying lever G, attached to the brake-beam, to thc right in Fig. l of the drawings.

The current to drive. the motor may come in at the sprocket from the third rack-rail and connected b vbrush it and .suitable Wiring etmncetions (indicated at scc. Vigil and 2) to Snitch G and controller ti to the motor, or current may bc t: ken in from thc trollcj t' and received by thc motor through conl' "ller G" and switch Gi", by means of which senese the motor connections may derive energy from one or the other of the sources, or they may be both open-circuited or both used in conjunction.

he propelling-gears D and E are mounted on sleeves D4 on the car-axles D and E, and l provide an eXtra connecting-gear or idler G1 between the propelling gear-slecves, or, more properly, the gears D5 thereon, as shown in Fig. 3, by the use of `which the backlash of the gear-trains is prevented from allowing the propelling-gears to get out of step on Crossovers or ,at joints and gaps in the traction rail but, if desired, the sleeves D* may be insulated at their ends, as indicated at lt, Fig. 2, from adjacent parts of the frame. y

The sleeves which carry the gears D E are loosely sleeved upon the axles D E and is driven through the train of gears above described from the motor, so that the motor may receive current from the traction rackrail with which the traction-.gears engage, While at the same time the gears E and rails operate as traction devices to effect the progression of the truck along the track-rails. Where the trolley is employed to supply current to the motor, the traction-gears D E, through their engagement with the rack-rail, serve merely the function of propelling the truck, or, if desired` and in addition, as-part of the return or ground circuit of the motor. lt may sometimes be desirable to operate the truck along portions of the track Where a third conductor or tracti n-rail has not been installed, the motor receiving current through the trollo as before; but instead of the propulsion of the 'tr-u icing effected tl'irough the tractiowgears l) il) it is necessary te provide other nieansdriven from the motor for effecting 'the 'propulsion of the truck. To this end l provide a clutch (indicated at Hl comprising the members Il llt, the member` ll being com'ieeted to the sleeve D4, or rather to the train of gearing driven from the motor through which said sleeve is vrotated upon the axle, While the member H2 of the clutch is sleeved upon and splined to rotate with theaxle, Therefore by throwing the member ll3 of the clutch into engaging relaition with the member ll. thereo the axlis iis geared to be rotated or driven from the ma tor, in 1which event the propulsion ofthe truifk s effected through the truely-Wheels instead of through the traction-gears D E. In this manner the locomotive is made convertibe to be used as a combined third and traction raeltfrail and comluciir-locomotive ornot` as maybe desired.

ln Figs. 5, (l, and T one method of insulating the rpopclling-gcar is detailed. llore it will bc seen that the gear-teeth are mounted upon a ring ll, provided with internal clutchlikt` projections E, 'lhe hub E is provided lOC` with cooperating outward rojections Et, which are secured to the disk iinming, preterably, a, part of the hub. (Fig. fi is section on line 6 6, Fig. 5.) A lanking disk oi' insule.- tion E5 (shown in Fig. 7) is used next to this hub-disk to cover its surface. internal and external curved pieces Ej E are next inserted, whereby clutch-like projections are eectively insulated from each other in line of radius. Next the blocks oi insulation E are placed around the circle between the opposite projections, in the present instance eight in number. Another insulating,r Ilanking disk E9 is then brought up and the Whole `securely clamped into e solid mass, or the eight blocks may be of resilient'. insulating material, soit or semisolt rubber, which while effectively insulating' will be found to give to the structure a slightly-yielding action between the teeth and the hub. The motor is mounted upon e suitable frame I, and this frame is elastically connected with the careXles-as, `for exemple, by the springs l. it will thus be seen that the traine end the motor are thus elastically mounted upon the axles and that the motion due to this mounting is taken up by the intermediate gear Uf end that the I'iropelling-gears :ire not moved with relation to their engagement with the rack, but have a constant engagement nt all times,- regardless of the movement of the fran'ie and motor.

I have shown in detail a particular construction einbodying my invention; but it is of course evident that the parts `may be vuried in many particulars, as well in the construction es in the arrangement, without departing from the spirit of my invention.

l. have illustrated in detail a particular construction embodying my invention; but it is of course evident that this'construction may be greatly varied and that some ci the `parte may be omitted and others used with ports not here shown without departing from the spirit of my invention.

B Ineens o'l` this invention the operation of elrectric railway systems, particularly in such places es mines and tunnels, and especiaily where grades exist, is very rrently simplified and mede much cheaper' and more efficient end satisfactory und permits the adaptation to circumstam'cs und conditions not connnercially possible in the ordinary electric-railway system. 'lhe arrangement of electrical and mechanical control herein illustrated permits an ellicicnt and reliable control of the motor under economical conditions and insures a certain protection end e'll'icient action wholly absent in the Aordinary electric-railway systems.

I claim- 1. The combination in e. rock-rail locomotive of a motor elastically mounted upon `ihe axles, e propelling-gear adoptedv to engage the ruck, u movable intermediuic power connection between the motor and thc propclling-geur whereby the motor and its frame :tre l'roe to move without causing a similar movement of thc propelling-gear.

2. rl`lie combination in a. rack-rail locomotive olt n motor, t\\o propolling-gears adapted to engage the rack, a. driving connection from the nlotor to these tivo zgears and an independent connection between the two gears 'whereby they are hept in a predetermined relation.

I, lin an clcctric rock-ruil locomotive, n truck-freine, a. motor und a propelling-geur adapted to engage the ruck both mounted on the truck-trame, car-wheels resting; on a truck, the gear mounted l'or constant vcrtical relation with the wheels, and a resilient medium between the wheels and said motor.

l. ln an electric rack-ruil locomotive, a truck-trame, a. propelling gear or gears cn- ;iagingr the rack, car-wheels resting;l upon 'a truck, n motor or umtors upon the locomotive, drivingconnections to the propellinggeurs, and a brake attached to the drivinpr connections.

ln an electric. rack-rail locomotive, a truck-trame, a prrmelling` gear or- ;,gcars engaging the ruoli, car-wheels restingr upon a. track. n motor or motors upon the locomotive, two sets ol' driving connections to the pro veiling-gears, and a brake uttached to encli set olf the driving connections,

(Sf'jin electric rack-ruil locomotive, a. truck-traine, apropelling `car or gears engaging the rack, car-Wheels .resting upon a. track, a motor or motors upon the locomotive, two sets of drivingy connections to the propelling-gears, e brake attached to euch set ot' the drivingf connections, e brake-applying; device for each brake and en equalixer between thc brakes.

7. ln an electric ruck-rail loconiotiye, :t truck-frame, e propelling gear or geni-s engaging the rnclr, car-wheels resting upon e track, brulies for the wheels and an independent set of brakes for the propellinggears.

S. ln an electric rack-rail lmomotivc, a. triulr-l'raine, n propelling` gear or gears engagingr'the rack, cor-wheels resting upon e track, an axle for the wheels, o propelling'- gear mounted thereon, and a detachable, driving connection between them.`

9. .ln en electric rack-rail locomotive, a truck-frame, a propelling geni' or gears engagging the rack, ear-wheels resting upon a truck, en nxle ier the wheels, a` propellinggear nniunted thereon by n hub so as to rcvolve freely upon 'the axle, a driving connection or rear upon the hub, and a detachublc drivineconnection between them.

l0. ln en electric ruck-ruil locomotive, a truck-frame, a propelling gear or `gears cnlOO Aug-iin; the rack, cer-Wheels restino' upon a track, an axle for the wheels, a propellingg'car mounted thereon, anxl a resilient nicliu1n between the motor au! llfe propellinggoal'.

ll. ln an electric rack-rail loconwtivc, a truck-traine, :i propelling gear or gears cn- ;Ia-ging ille moli, cer-wheels resting,l 'upon a track, en axle lor clic Wheel., a propelling;- `gear mounted thereon but insulated lic-rofrorn, an electrical connection extending from tlie truck-freine to tlie insulated `nopelling-geer, and en electric switch in circuit with the connection.

12. ln an electric rack-rail locoimitiic7 a truck-frame, o. propelling gear or gears cngaging the rack, car-Wheels resting upon e track, an axle foi' the Wheels, a -props-illinoigear mounted thereon lout insulated tlierefrom, and a detachable driving connection between them.

13. ln an electric rack-rail locomotive, e truck-freine, a propelling gear or gea-rs cng'aging tlie rack, car-.Wheels resting upon e track, an axle for the Wheels, apropellinbgear mounted thereon but insu therelroin in Whole or pertljy resilient insulating merlin-mi 14. ln an electric rack-rail locomotive, e truck-freine, e propelling gear or engaging the rack, cer-Wheels resting upon e tra-cli., ye power-driven revolving' part, tlie propelling-gear mounted upon but electricallyr insulated therefrom, and e resi lent in- .suletingl medium between tlie port and gear.

l5. en insulated propelling-goor tor a nickreil electric locomotive consisting ein ring neer to and supportinpr the teeth, clutch-` lilie projections connected to the ring, cooperating projections lor driving' the in in- ,suleting material between tlie icclions,

anling faces also insulating' limitellal.

i6. Au isolated propelling-gmitoi rail electric locomotive consieti i l' neer to end supporting the tee-tu, el.` projections connected to the ring, ring projections for criving the freer, insola ing material between tfno projections, ii'anlf ing laces also of insulating materiel, and bolts parallel to the exis Jfor liolzling the mass together.

l?. An insulated propelling-gear for a rackrail electric locomotive consistingy ot a. ring near to and supporting the teeth, clutch-like projections coiinected to the ringcooperatino; projections for driving tlie gear, thinking feces ol' insulating material, for holding the gear leterally and resilient insulatingl inalcral lult/Ween tlie projections; v

t, A Spring-mounted rack-rail loc-omotivc fomprising a truck-frame, truck .fliecl" and xlee supporting suoli li'axnc, a prop i i rfi ol(- i ring --lilie over.

ll). ln an electric rack-rail locomotive, truck-hunne, a pr(ipelling` gear or gea-rs faging the rack, car-wheels resting upon e- 'niclg e, resilient icfliuni between lthe Wheels connecteflL par and the truclr, niotor'on lrucl; anal o yielding power connection o tlie 'propelling-gem: l

l). i spring-mounted rack-rail locornotive comprising o truck-freine, truck Wlieels ami orales supporting suoli frame, propel-A liiig-gfcar being mounted upon the car-axles, a flexible power connection to the propellinglgear, conn an intcrinciliate gear end swinging journal 'lor Ythe internJ erliate geen 2i, le an ec-tric rack-rail locomotive resting upon :i track, insulated propellingengziging' an insulated reali, an elect/ri motor on the locomotive, on overhead-trolley system and electrical connections for the ino'- tor extending to ootli tne rack connections anfl the trolloj,

22. ln an electric rock-rail locomotive esting upon e tinck, `isulatecl propelli -ear engaging' an insulated rack, en electric no tor on tlie locomotive, an overhead-trollif Vstein anal electrical coni'iections for l'lie 1 no cxtenfling to both the rack connections the trolley, and electrical switches; for lisconnecting` either one or liotli said .sources ci" eupplwif'.

ln an electric moli-rail locoino+-` resting upon e track, insulated propoli gear engaging an insulatecl rack, en elec motor on tn locomotive, in combination Wi tl a duplicate electrical traveling-contact system o'l circuits lor the motor,

Ell. ln elec ric reel-rail locomotive no upon tinck, .insulated propellinggcai' engaging insulated rack, :in elcctiic inoxy r mi tlielecoinotive, in combinationwith. filsolicatc electrical @circling-contact `ein c eleotri circuits for ille .motor 'riool circuits j Y leeilinp to eac irlsystems.

ln an electric rack-rail locomotive v27, In an electric rack-:coil locomotive, e l teme for the cer and e detachable driving truck-frame, two propelling-gears engaging the rack, cer-Wheels and track for supporting the truck-frame, an electric motor common to the ropelling-geers and serving as a inedium o power connection between them.

28. Inv en electric rack-rail locomotive, a

Atruclix-freine, ,two propelling-genis engaging the rack, car-wheels and trecli for supporting the truck-frame, en electric motor common to the propelli11g-geers,`the rotating port of which serves es o.. medium of power connection between t'ne two.

29. In an electric recit-rail locomotive or car, car-Wheels for supporting the structure,

connection between the motor and the carwlieels.

30. In on electric rack-rail locomotive, n propelling gear or gears engaging the rack, cer-wheels resting upon the track, an axle for the wheels, a motor upon the locomotive, a pro elling-gear mounted upon the axle, n detoclinble drivin@ connection between the propelling-gear one axle, du plicnte travelingcontect systems of electric supply and o contact device upon the locomotive for connecting each system with the motor ELMER A. SPERRY.

Witnesses:

PHILH F. LARNER, H. M. ELLIS. 

